The Obsidian Blade (Klaatu Diskos)

The Obsidian Blade (Klaatu Diskos) by Hautman, Pete. paperback edition. ISBN: 9780763664442.

"This might be Hautman’s most daring book yet. . . . Well-developed and complex characters, a fascinating time-travel framework, and a heart-stopping conclusion." — Publishers Weekly (starred review) Tucker Feye’s family has disappeared. He suspects that the disks of shimmering air he keeps seeing — one right on top of the roof — hold the answer to finding them. But when he dares to step into one, he’s launched on a time-twisting journey — from a small Midwestern town to a futuristic hospital run by digitally augmented healers, from the death of an ancient prophet to a forest at the end of time. Inevitably, Tucker’s actions alter the past and future, changing his world forever. The first in a riveting sci-fi trilogy by National Book Award winner Pete Hautman.